Whoop MG review — A screenless fitness tracker for performance geeks
The Whoop MG would be the best sleep and recovery tracker on the market if it were not for its flawed hardware and performance hiccups.
Category: Science
NASA’s Perseverance rover spies mysterious ‘helmet’ on Mars
A medieval-looking “helmet” rock spotted by NASA’s Perseverance rover adds to Mars’ gallery of odd shapes.
Longest canyon in the solar system reveals new secrets — Space photo of the week
NASA’s Mars Reconnaissance Orbiter recently photographed Candor Chasma in Mars’ Valles Marineris, the largest canyon in the entire solar system.
Anatomy of a Space Shuttle
This illustration shows the parts of a space shuttle orbiter. About the same size and weight as a DC-9 aircraft, the orbiter contains the pressurized
Exposure triangle explained: A photographer’s guide to mastering light
Learn how aperture, shutter speed and ISO work together in the exposure triangle to help you take full creative control of your photography.
An ‘equinox solar eclipse’ is coming in September — here’s where to see it
A partial solar eclipse is taking place just hours before the equinox flips Earth’s seasons in September 2025. Here’s where a few lucky humans will
Where can you see the Sept. 7 ‘blood moon’ total lunar eclipse?
The second and final ‘blood moon’ total lunar eclipse of 2025 is coming on the night of Sept. 7-8. Here’s where the celestial spectacle will
Hawaii’s Kilauea volcano erupts again and shoots lava for 31st time since December
Hawaii’s Kilauea volcano resumed erupting Friday by shooting an arc of lava 100 feet into the air and across a section of its summit crater
Meet Robot Drummer: Scientists train an AI to drum like Linkin Park and AC/DC — but it sounds like it has plenty of practice to do
Robot Drummer is a simulated program able to learn pop, rock, and jazz songs with reinforcement learning.
Why do caffeine withdrawal headaches hurt so much?
It’s still largely a mystery why caffeine withdrawal causes headaches, but researchers have a few ideas.
Toxic chemicals that pollute groundwater are formed up in the stratosphere, surprise findings show
Perchlorates, a group of toxic chemicals that pollute groundwater, first form on rare particles in the stratosphere, scientists have discovered.
X-ray telescope finds something unexpected with the ‘heartbeat black hole’
NASA’s Imaging X-ray Polarimetry Explorer (IXPE) telescope has detected unexpected X-ray polarization from the “heartbeat black hole,” formally known as IGR J17091-3624.
Scientists may have found a powerful new space object: ‘It doesn’t fit comfortably into any known category’
Nicknamed ‘Punctum,’ this puzzling phenomenon is highly energetic, but is only seen in millimeter-wavelength light and cannot be explained by any known object.
Pallas’s cat: One of the world’s oldest felines that stands on its bushy tail to keep its paws warm
Pallas’s cat is a small wild cat native to Central Asia with short legs and dense fur, making it look bigger than it really is